Added a function for ease of understanding

266B - Queue at the School.cpp

@@ -1,26 +1,34 @@
 //4021768   Jul 4, 2013 7:57:17 PM	fuwutu	 266B - Queue at the School	 GNU C++0x	Accepted	15 ms	0 KB
 #include <iostream>
 #include <string>
-
 using namespace std;
 
-int main()
-{
-    int n, t;
-    string s;
-    cin >> n >> t >> s;
-    while (t--)
-    {
-        for (int i = 1; i < n; ++i)
-        {
-            if (s[i] == 'G' && s[i-1] == 'B')
-            {
-                s[i] = 'B';
-                s[i-1] = 'G';
-                ++i;
+string swap_action(string str){
+    for(int i = 1; i<str.length(); i++){
+            if(str.at(i-1) == 'B' && str.at(i) == 'G'){
+                str.at(i) = 'B';
+                str.at(i-1) = 'G';
+                i++;
             }
         }
+    return str;
+}
+
+int main(){
+
+    int student, t;
+    string s;
+
+    cin >> student >> t;
+    cin.ignore();
+
+    getline(cin, s);
+
+    for(; t > 0; t--){
+        s = swap_action(s);
     }
+
     cout << s << endl;
+
     return 0;
 }